//返回顶部样式
.gotop{
	position: fixed;
	right: 0.24rem;
	bottom: 1.2rem;
	z-index: 9;
	width: 0.64rem;
	height: 0.64rem;
	line-height: 0.64rem;
	text-align: center;
	background-color: rgba(0, 0, 0, 0.7);
	border-radius: 50%;
	&:after{
		content: "\e623";
		font-family: "iconfont" !important;
		color: #fff;
		font-size: 0.5rem;
	}
}